For system default pagesize, it's hard to calculate, and it changes all the time, so just skip it. For others, reading from sysfs to get free pages. Signed-off-by: Jincheng Miao <jmiao(a)redhat.com&gt; --- repos/virconn/free_pages.py | 97 +++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 97 insertions(+), 0 deletions(-) create mode 100644 repos/virconn/free_pages.py diff --git a/repos/virconn/free_pages.py b/repos/virconn/free_pages.py new file mode 100644 index 0000000..7172dfe --- /dev/null +++ b/repos/virconn/free_pages.py @@ -0,0 +1,97 @@ +#!/usr/bin/env python +# test libvirt free pages + +import os +import resource + +import libvirt +from libvirt import libvirtError + +from src import sharedmod + +required_params = ('cellid', 'pagesize',) +optional_params = {} + +HUGEPAGE_PATH = '/sys/devices/system/node/node%s/hugepages/hugepages-%skB/free_hugepages' + +def parse_unit(pagesz): + """ parse a integer value, its unit is KiB + """ + val = int(pagesz[0:len(pagesz)-1]) + unit = pagesz[-1] + if unit == 'K': + unit = 1 + elif unit == 'M': + unit = 1024 + elif unit == 'G': + unit = 1024*1024 + else: + return None + + return val * unit + +def parse_page_list(pagesize): + """ parse page size + """ + if pagesize == None: + return None + + l = list() + for ps in pagesize.split(','): + ps.strip().upper() + val = parse_unit(ps) + if val == None: + return None + l.append(val) + return l + +def check_free_pages(page_list, cell_id, free_page, logger): + """ check page size + """ + for ps in page_list: + # if pagesize is equal to system pagesize, since it is hard to + # calculate, so we just pass it + if resource.getpagesize()/1024 == ps: + logger.info("skip to check default %sKB-page" % ps) + continue + + sysfs_path = HUGEPAGE_PATH % (cell_id, ps) + if not os.access(sysfs_path, os.R_OK): + logger.error("could not find %s" % sysfs_path) + return False + f= open(sysfs_path) + fp = int(f.read()) + f.close() + if not fp == free_page[0][ps]: + logger.error("Free %sKB page checking failed" % ps) + return False + logger.info("Free %sKB page: %s" % (ps, fp)) + + return True + +def free_pages(params): + """ test libvirt free pages + """ + logger = params['logger'] + cell_id = int(params['cellid']) + + conn = sharedmod.libvirtobj['conn'] + + page_list = parse_page_list(params['pagesize']) + if page_list == None: + logger.error("pagesize could not be recognized") + return 1 + + try: + free_page = conn.getFreePages(page_list, cell_id, 1) + + if check_free_pages(page_list, cell_id, free_page, logger): + logger.info("Success to check free page") + else: + logger.error("Failed to check free page") + return 1 + except libvirtError, e: + logger.error("API error message: %s, error code is %s" % + e.message) + return 1 + return 0 \ No newline at end of file -- 1.7.1

Signed-off-by: Jincheng Miao <jmiao(a)redhat.com&gt; --- cases/test_connection.conf | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/cases/test_connection.conf b/cases/test_connection.conf index ccde119..4211511 100644 --- a/cases/test_connection.conf +++ b/cases/test_connection.conf @@ -29,3 +29,9 @@ virconn:connection_nodeinfo virconn:connection_version conn lxc:/// + +virconn:free_pages + cellid + 0 + pagesize + 4k,2M -- 1.7.1